Our Products
M3 Frame 225~400 A (MCCB)

Ex9 Series - M: Molded Case Circuit Breakers

NOARK Electric offers a complete range of 2 and 3 pole Molded Case Circuit Breakers in 6 frame sizes: M1 - 150 A, M2 - 250 A, M3 - 400 A, M4 - 600 A, M5 - 800A, and M6 - 1200A. Each frame size offers a range of interrupting voltage ratings from 240-690 Vac and 250-600 Vdc. The M series conforms to global standards that include UL 489, CSA C22.2 No 5.1 and IEC 60947-2.

The Ex9 Series - M offers

  • High-breaking capacity and a new patented arc extinguishing design
  • New patented technology reduces the manual operating force
  • High quality compact modular with energy saving and environmentally friendly design
  • Installation flexibility: Bus Bar Connection, Lug Line/Load Side Connection, Plug-In, Rear Connection and Draw-Out
  • Fixed and adjustable trip setting units
  • Wide range of accessories: Alarm Switch, Auxiliary Contact, Shunt and Under-Voltage Trip, Interlock, Rotary Handle and Motor Operator


UL 489 Listed

Certification File:


Compliant to:

CSA C22.2 No. 5-02, IEC/EN 60947-2, CE, RoHS

Rated Current

225~400 A

Number of Poles

2, 3

Breaker Type

S, N, H

Rated Voltage (50/60 Hz)

240-690VacĀ and 250-600Vdc